Twisting molecule wrings more power from solar cells

Inside a solar cell, sunlight excites electrons. But these electrons often don't last long enough to go on to power cell phones or warm homes. In a promising new type of solar cell, the solar-excited electrons have better ...

What happens when high achievers retire?

When we think of retirement, we usually conjure images of silver-haired folks playing golf, going on long vacations or taking daytime naps as a reward for a lifetime of work.

Social security: Fixing the glaring gap for women

(Phys.org) -- After a lifetime of lower wages and time out of the labor market for caregiving, women typically receive less from Social Security than men, with millions of widows and women of color falling into poverty in ...

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